hiiro yuki, sena shiori, yuuguu settai, game cg, 00s, 1girl, armpits, arms up, bird, blue eyes, blue hair, blunt bangs, blush, cloud, day, dutch angle, female focus, flat chest, hat, light rays, long hair, matching hair/eyes, ocean, one-piece swimsuit, outdoors, plaid clothes, plaid sarong, ponytail, sarong, school swimsuit, seagull, sky, smile, solo, standing, straw hat, sunbeam, sunlight, swimsuit, thigh gap, water